Grill oven



FIG. 1 is a perspective view of a grill oven showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view showing another configuration of the grilloven.

Broken lines in the drawings depict portions of the grill oven that formno part of the claimed design.

CLAIM The ornamental design for a grill oven, as shown and described.